billionaire media tycoon and mayor of san francisco. vp @foundersfund. ringleader @hereticon. editor-in-chief @ pirate wires 
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How about peer pressure? Applies a lot to most aspects you mention but not voting because voting behaviour cannot be observed by peers!
implication teens are more susceptible to peer pressure than adults (uncertain this is true) would imply they are mentally less capable than adults, and should therefore not be voting
Your implication that peer pressure is related to rationality, I think it’s more desire for acceptance. I could certainly imagine teens being more susceptible to this. (I may be biased growing up in Latvia where peer pressure in school is huge to drink/party/otherwise fit in).
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